Rectangular conductor for solar battery, method for fabricating same and lead wire for solar battery

1. A plated conductor for a solar battery comprising a rectangular conductor and a plating film, the rectangular conductor having a volume resistivity equal to or less than 50μΩ·mm, and a 0.2% yield strength value equal to or less than 90 MPa in a tensile test,

wherein the plated conductor for the solar battery is attached to a Si cell.

2. The plated conductor for a solar battery, according to claim 1 , wherein the rectangular conductor is composed of one element selected from the group consisting of Cu, Al, Ag and Au.

3. A method for fabricating a plated conductor for a solar battery comprising:

rolling a rectangular conductor having a volume resistivity equal to or less than 50 μΩ·mm;

conducting a heat treatment for the rectangular conductor to have a 0.2% yield strength value equal to or less than 90 MPa in a tensile test;

providing a plating film on at least a region or all of a surface of the rectangular conductor to form the plated conductor; and

attaching the plated conductor to a Si cell.

4. The method for fabricating a plated conductor for a solar battery, according to claim 3 , wherein the heat treatment is conducted by a batch type heat treatment by using a heater or a current flowing type heat treatment.

5. A lead wire for a solar battery, comprising:

a rectangular conductor for a solar battery having a volume resistivity equal to or less than 50μΩ·mm, and a 0.2% yield strength value equal to or less than 90 MPa in a tensile test; and

a solder plating film provided on at least a region or all of a surface of the rectangular conductor to form a solder-plated conductor,

wherein the lead wire for the solar battery is attached to a Si cell.

6. The lead wire for a solar battery, according to claim 5 , wherein the solder plating film is composed of Sn—Ag—Cu based Pb free solder.

7. The lead wire for a solar battery, according to claim 5 , wherein the rectangular conductor has a 0.2% yield strength value equal to or less than 80 MPa in a tensile test.

8. The plated conductor for a solar battery, according to claim 1 , wherein the plated conductor is not a clad plated conductor.

9. The method for fabricating a plated conductor for a solar battery, according to claim 3 , wherein the plated conductor is not a clad plated conductor.

10. The plated conductor for a solar battery, according to claim 1 , wherein the plated conductor has a 0.2% yield strength value equal to or less than 80 MPa in a tensile test.

11. The plated conductor for a solar battery, according to claim 1 , wherein the plating film is a solder plating film composed of Sn—Ag—Cu based Pb free solder.

12. A solar battery module comprising the plated conductor for a solar battery, according to claim 1 .

13. The lead wire for a solar battery, according to claim 7 , wherein the solder plating film is composed of Sn—Ag—Cu based Pb free solder.

14. The lead wire for a solar battery, according to claim 5 , wherein the rectangular conductor is composed of one element selected from the group consisting of Cu, Al, Ag and Au.

15. A solar battery module comprising the lead wire for a solar battery, according to claim 5 .

16. The method for fabricating a plated conductor for a solar battery, according to claim 3 , wherein the rectangular conductor has a 0.2% yield strength value equal to or less than 80 MPa in a tensile test.

17. The method for fabricating a plated conductor for a solar battery, according to claim 3 , further comprising disposing the attached plated conductor and Si cell in a solar battery module.